HYDRA: A Hyper Agent for Dynamic Compositional Visual Reasoning
作者: Fucai Ke, Zhixi Cai, Simindokht Jahangard, Weiqing Wang, Pari Delir Haghighi, Hamid Rezatofighi
分类: cs.CV
发布日期: 2024-03-19 (更新: 2024-07-21)
备注: Accepted by ECCV2024. Project page: https://hydra-vl4ai.github.io/
💡 一句话要点
提出HYDRA框架以解决动态组合视觉推理问题
🎯 匹配领域: 支柱二:RL算法与架构 (RL & Architecture) 支柱九:具身大模型 (Embodied Foundation Models)
关键词: 视觉推理 动态组合 强化学习 多模态推理 大型语言模型
📋 核心要点
- 现有的视觉推理方法依赖于大规模数据集,面临高计算成本和泛化能力不足的挑战。
- HYDRA框架通过集成规划者、RL代理和推理器,动态选择指令样本以优化推理过程。
- 在多个视觉推理任务中,HYDRA在四个广泛使用的数据集上表现出最先进的性能。
📝 摘要(中文)
近年来,视觉推理(VR)在大型视觉语言模型(VLMs)的辅助下取得了显著进展,但仍面临大规模数据集的依赖、高计算成本和有限的泛化能力等挑战。组合视觉推理方法作为有效策略,过于依赖大型语言模型(LLMs)中的常识知识,未能考虑决策对视觉推理过程的影响,可能导致错误或失败。为了解决这些问题,本文提出了HYDRA,一个多阶段动态组合视觉推理框架,旨在实现可靠且逐步进展的推理。HYDRA集成了规划者、作为认知控制器的强化学习(RL)代理和推理器三个模块,能够根据历史状态的信息动态选择最佳指令样本,从而提高推理的可靠性和有效性。我们的框架在四个广泛使用的数据集上展示了最先进的性能。
🔬 方法详解
问题定义:本文旨在解决现有视觉推理方法对大规模数据集的依赖及其在推理过程中决策影响的忽视,导致的错误和失败问题。
核心思路:HYDRA框架通过动态交互的方式,将规划、推理与强化学习相结合,使得推理过程能够根据历史反馈进行调整,从而提高推理的可靠性和有效性。
技术框架:HYDRA的整体架构包括三个主要模块:规划者、RL代理和推理器。规划者生成指令样本,推理器根据选定的指令生成可执行代码,而RL代理则根据历史状态动态选择最佳指令。
关键创新:HYDRA的创新在于其动态反馈机制,使得推理过程能够根据先前的反馈进行调整,这一设计与传统方法的静态决策过程形成鲜明对比。
关键设计:在模块设计上,规划者和推理器利用LLM生成指令和代码,RL代理则通过强化学习算法优化决策过程,确保每一步的选择都基于历史反馈。具体的参数设置和损失函数设计尚未详细披露。
📊 实验亮点
HYDRA在多个视觉推理任务中表现出色,尤其是在四个广泛使用的数据集上,达到了最先进的性能,具体提升幅度和对比基线数据在论文中有详细说明。
🎯 应用场景
HYDRA框架在视觉推理领域具有广泛的应用潜力,特别是在需要动态决策和实时反馈的场景中,如机器人视觉、自动驾驶和智能监控等。其可靠的推理能力将推动这些领域的技术进步和实际应用。
📄 摘要(原文)
Recent advances in visual reasoning (VR), particularly with the aid of Large Vision-Language Models (VLMs), show promise but require access to large-scale datasets and face challenges such as high computational costs and limited generalization capabilities. Compositional visual reasoning approaches have emerged as effective strategies; however, they heavily rely on the commonsense knowledge encoded in Large Language Models (LLMs) to perform planning, reasoning, or both, without considering the effect of their decisions on the visual reasoning process, which can lead to errors or failed procedures. To address these challenges, we introduce HYDRA, a multi-stage dynamic compositional visual reasoning framework designed for reliable and incrementally progressive general reasoning. HYDRA integrates three essential modules: a planner, a Reinforcement Learning (RL) agent serving as a cognitive controller, and a reasoner. The planner and reasoner modules utilize an LLM to generate instruction samples and executable code from the selected instruction, respectively, while the RL agent dynamically interacts with these modules, making high-level decisions on selection of the best instruction sample given information from the historical state stored through a feedback loop. This adaptable design enables HYDRA to adjust its actions based on previous feedback received during the reasoning process, leading to more reliable reasoning outputs and ultimately enhancing its overall effectiveness. Our framework demonstrates state-of-the-art performance in various VR tasks on four different widely-used datasets.